3 Definitions and abbreviations

24.3043GPPMobility management based on Mobile IPv4Release 17Stage 3TSUser Equipment (UE) - foreign agent interface

3.1 Definitions

For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 [1] and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in 3GPP TR 21.905 [1].

Foreign Agent (FA): a router on a visited network which provides mobile IPv4 routing services to the UE while registered as described in IETF RFC 5944 [2].

Foreign agent care-of address: an address of a foreign agent with which the UE is registered as described in IETF RFC 5944 [2].

Home Agent (HA): a mobile IPv4 router on a UE’s home network which tunnels datagrams for delivery to the UE while it is registered on a visited network as described in IETF RFC 5944 [2]. According to 3GPP TS 23.402 [3], the HA functionality is implemented in the PDN Gateway.

3.2 Abbreviations

For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 [1] and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in 3GPP TR 21.905 [1].

EPC Evolved Packet Core Network

FA Foreign Agent

FACoA Foreign Agent Care-of Address

HA Home Agent

RRP Registration Reply

RRQ Registration Request